December · Slovenia
Best time to visit Koper in DecemberWeather, crowds & prices
December score
7.8/10
Ranked #12 of 12 months
- Avg temp
- 14°C
- Rainfall
- 95 mm
- Humidity
- 60%
- Sunny days
- 19
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $$ · Moderate Cost ($$)
December in Koper scores 7.8/10 for sightseeing and cultural travel - ranked #12 of 12. Expect around 14°C, 95 mm of rain, and roughly 19 sunny days this month.
Historic Venetian port city on Slovenia's Adriatic coast featuring Praetorian Palace and medieval plazas.
Frequently asked
- What is the weather like in Koper in December?
- In December, Koper averages 14°C, 95 mm of rain, and about 19 sunny days. Its climate-comfort score is 7.8/10.
- Is December a good time to visit Koper?
- December earns a 7.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Koper in December?
- Expect about 95 mm of rain in December. Average humidity is 60% and there are about 19 sunny days.
Curated in Koper
Tickets & experiences
Things to do in Koper
Koper, Slovenia. Live activities and tours from GetYourGuide, matched to this destination.